Autofluorescent Cancer Stem Cells: Potential Biomarker to Predict Recurrence in Resected Colorectal Tumors.

Cancer stem cells (CSC) in colorectal cancer drive intratumoral heterogeneity and distant metastases. Previous research from our group showed that CSCs can be easily detected by autofluorescence (AF). The aim of the present study was to evaluate the potential role of AF CSCs as a prognostic biomarker for colorectal cancer relapse.

A non-randomized prospective study on the diagnostic performance of perineal prostatic biopsy, directed via diffusion nuclear resonance, in patients with suspected prostate cancer and previous negative transrectal prostate biopsy.

Background: A definition of the best strategy is necessary to optimize the follow-up of patients with previous negative transrectal guided ultrasound biopsy (TRUS-GB) and the persistence of raised prostate-specific antigen (PSA).The purpose of this study was to evaluate the prostate cancer (PCa) diagnostic rate of targeted transperineal ultrasound guided biopsy (TPUS-GB) with cognitive multiparametric magnetic resonance imaging (mpMRI) registration with concurrent systematic biopsy in patients with previous negative systematic TRUS-GB and persistently elevated PSA levels.

Materials And Methods: In this prospective study conducted at the University Infanta Sofia Hospital from April 2016 to November 2017, patients with one previous negative systematic TRUS-GB and persistently high PSA levels were referred for mpMRI prostate scans.

Late-Onset Facial Papular Elastorrhexis.

Papular elastorrhexis, a rare defect of dermal elastic fibers of unknown origin, usually involves the trunk and extremities of children or young adults. We report the case of a 62-year-old woman with multiple soft, skin-colored facial papules with histological findings characteristic of papular elastorrhexis. Awareness of this entity may allow for its proper identification outside the usual clinical setting.

Current evidence for cancer stem cells in gastrointestinal tumors and future research perspectives.

Cancer stem cells (CSCs) are a very heterogeneous subpopulation of "stem-like" cancer cells that have been identified in many cancers, including leukemias and solid tumors. It is believed that CSCs drive tumor growth, malignant behavior and are responsible for the initiation of metastatic spread. In addition, CSCs have been implicated in chemotherapy and radiotherapy resistance.

Insulinoma-induced hypoglycemia in a patient with nesidiodysplasia after vagomotomy and pyloroplasty for duodenal ulcer.

A 45-year-old woman was referred to us for hypoglycemia. The patient had been operated on for a duodenal ulcer by bilateral troncular vagotomy and pyloroplasty 20 years ago and, since then, she showed a dumping syndrome. Two months before consultation she developed repetitive episodes of symptomatic hypoglycemia.

The DEAD box RNA helicase VBH-1 is required for germ cell function in C. elegans.

Vasa and Belle are conserved DEAD box RNA helicases required for germ cell function. Homologs of this group of proteins in several species, including mammals, are able to complement a mutation in yeast (DED1) suggesting that their function is highly conserved. It has been proposed that these proteins are required for mRNA translation regulation, but their specific mechanism of action is still unknown.

Functional neck dissection for the clinically negative neck: effectiveness and controversies.

This study was performed to evaluate the effectiveness of functional neck dissection in controlling metastasis to the clinically negative (cN0) neck, focusing on recurrences in the pathologically negative (pN0) neck and the role of extracapsular spread in the cN0 neck. A series of 172 patients (253 dissected fields) treated for cN0 laryngeal or hypopharyngeal cancer with a 5-year minimum follow-up is presented. Occult metastasis was observed in 30% of the patients.